Flash saves the Rock Prince even as the Rock King is about to execute Dale. Zarkov, Dale and Roka escape and while Zarkov goes ahead to find Flash, Dale and Roka are re-captured. Flash arrives with the Rock Prince and Flash's group is spared, but Sonja and Ming's men escape, but are re-captured by the Rock Prince and Flash and crew. They all head for Barin's ship and fly to Mongo to rescue Princess Aura. They manage to sneak into a tunnel below Ming's castle, but are detected by Ming who orders flood gates to be opened which will sweep them away. Are they good swimmers? See chapter 10 for the answer.